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Method and computer program product for estimating at least one state of a dynamic system

  • US 6,711,476 B2
  • Filed: 09/27/2001
  • Issued: 03/23/2004
  • Est. Priority Date: 09/27/2001
  • Status: Expired due to Fees
First Claim
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1. A method of estimating at least one operational state of a dynamic system utilizing at least partially automated control and having at least one actuator and at least one sensor, the method comprising:

  • generating a first feedback signal at least partially based upon an anticipated change in a value representative of the at least one operational state of the dynamic system that is attributable to a current estimate of the value representative of the at least one operational state of the dynamic system and the commanded state of the at least one actuator and independent of the actual measurement of any sensor;

    generating a second feedback signal at least partially based upon a difference between a value of an anticipated measurement that is expected to be provided by the at least one sensor and a value of the actual measurement provided by the at least one sensor, wherein generating the second feedback signal comprises weighting the difference between the respective values of the anticipated and actual measurements of the at least one sensor based upon a predetermined criteria; and

    combining the first and second feedback signals to produce an estimate of the at least one operational state of the dynamic system.

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